A report by the Massachusetts inspector general released Tuesday said that former drug lab technician Annie Dookhan was the "sole bad actor" at a Boston drug lab once responsible for tests related to thousands of criminal cases, and that directors of the facility were "ill-suited" to oversee her and other lab technicians.

The largest study of mental-health risk ever conducted among the U.S. military has found that many soldiers suffer from some form of mental illness, and rates of many of these disorders are much higher in soldiers than in civilians.